Paul Davies on time travel: Can it really be done?

Paul Davies, author of the popular best-seller “How to Build a Time Machine” discussed time travel when he presented the annual Sci-fi Meets Sci-Fact lecture on Jan. 31, at Arizona State University.

Time travel is a favorite science fiction theme, but can it really be done?

“Well, maybe,” says Davies, the internationally acclaimed cosmologist, astrobiologist and theoretical physicist at Arizona State University, where he is a Regents’ Professor in the Department of Physics.

The London native also directs the BEYOND Center for Fundamental Concepts in Science, a cosmic think tank he established at ASU in 2007. More about Paul Davies and his research at beyond.asu.edu.